Electric socket



May 2, 1933 w. L LONG 1,907,422

ELECTRIC SOCKET Filed Aug. l2, 1950 2 Sheecs-Sheei'I l vnmsx Y A wir/14.7114' A ff if f A Y .n

May 2, 1933. w. L. LONG 1,907,422

ELECTRIC SOCKET Filed Aug. l2, 1930 2 Sheets-Sheet 2 Patented May 2, 1933 UNITED STATES PAT 7' FFCE WILBER L. LONG, OF KIR-KSVILLIE, MISSURT, .ASSIGNOR OF ONE-FFTH TO H. BYOUNG,

ONE-FOURTH T A. J. YVETTE, AND KIRKSVILLE, MISSOURI ONE-TENTH DR. F. B. FABRINGTON, ALL OF ELECTRIC SOCKET Application sied August 12, 1930. i sel-iai no. 474,804.

10 necessity of a screwing operation.

Another object of the invention is to pro- Vide a socket of this kind comprising means whereby a lamp globe or the like having a conventional thread sleeve may be applied to the socket by a slip motion, thus avoiding the necessityof screwing the globe or the like into place.

Furthermore, it is an object of the inventionto provide a socket of this kind wherein a light globe or the like may be readily pushed into contacting position within the socket or lreadily pulled out as may be desired.'

An additional obj ect of the invention is t0 provide a socket of this kind embodying a switch for readily controlling the flow of electrical energy.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improvedelectric socket whereby certain Aimportant advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein Figure 1 is a view in section of a socket constructed in accordance with an embodiment of my invention, an applied globe being shown in fragment and in elevation;

Figure 2 is a fragmentary detail sectional view taken through the head member of the socket, certain of the associated parts `being shown in elevation;

Figure 3 is a view in perspective of one of the grip members unapplied;

Figure 4 is a view in top plan of the socket as herein disclosed withthe hood andjelectrical conductors removed, one of the contactsbeing indicated by broken lines and a second position ofthe switch blade being also indicated by broken lines;

Figure 5 is a view in bottom plan of the socket as illustrated in Figure 1 with the lamp globe omitted;

Figure 6 is a view partly in section'and partly in elevation illustrating a socket constructed in accordance with a further embodiment of `my invention;

Figure 4" is a view partly in plan and partly in section of one of the contact members illustrated in Figure 6. u

As disclosed in the accompanying drawings, 1 denotes a head member in the form of an inverted dish and which is produced from suitable material non-conductive of electricity. The flange 2 defining the marginal portion of this head member 1 is telescopically received within an Vend portion of a sleeve 3 which may be of any desired material and of any vpreferred length.

Underlying the inner face of the head member 1, and herein disclosed as disposed radially thereof, is a contact plate l provided at one end portion with a laterally directed post 5 preferably at right angles thereto'and which is snugly disposed through an open'- ing 6 provided in the head member` 1 at a point in Vrelatively close proximity to its margin. Threaded upon the portion of the post 5 outwardly of the head member 1 are the burrs 7 and 8, the burr 7 providing means whereby the contact plate 4 is eectively held in desired position withrespect to the head member 1. 1

Engaged in a conventional way between the burrs 7 and 8 is a terminal of an electrical conductor 9. At points equidistantly spaced circumferentially thereof the head member 1 is provided with the recesses or notches 10,

herein disclosed as three in number, and in each of which is received an end portion'of a resilient arm or strip 12. This end portion of the arm or strip 12 .is riveted, as at 14, or

otherwise securely anchored to the head member 1. Normally the arms or strips 12 have their free portions, or those portions thereof within the sleeve 3, arranged in convergence with said free portions provided with arcuate cross bars 15. The bars 15 which are curved longitudinally and which are secured between their ends to the arms 12, extend transversely. of the arms and have their concave sides arranged innermost to adapt them to etfectively'engage a threaded errule or sleeve 16 or the like of a lamp globe, fuse plug, etc. This sleeve or errule may be readily slipped within the socket and effectively held therein by coactien of the cross members 15 oi the arms 12 with the thread of the sleeve or errule 16 and whereby the Contact 17 carried by the lamp globe or the like is maintained in desired electrical connection with the contact plate 4.

One of the arms or strips 12 has its connected extremity continued to provide a clip 18 overlying the outer face of the head member 1 and with which is adapted to be brought into eective electrical connection with an elongated switch blade 19. @ne end portion of this blade 19 is pivotally connected to an upstanding post 2() disposed through the head member 1 and with which is electrically connected through the medium of the burrs 21 the terminal of a second electrical conductor '23. The blade 19 is of a length to extend beyond the periphery of the head mehr ber 1 and said projected or extended portion vcarries a serrated or kindred head or finger p'iece 23 whereby the blade 19 may be readily shifted into either open or closed position with respect to the clip 18.

hood 24 of metal or other desired material is engaged with the sleeve 3 vand disposed 'over the head member 1, it being understood that this hood is Ventirely provided in 'a wall thereof with an opening through which the outer end portion of the blade 19 is directed and which opening will permit the desired movement of the blade 19 into either open or closed position.

In the embodiment of my invention as illustrated in 'Figures 6 and 7, the head member la; has underlying its inner tace and disposed radially thereof a spring contact plate la for vengagement with the central contact 17a of the lamp. One end portion of this contact plate 4a is provided with a substantially perpendicularly directed post 5a extending through the head member 1a and with which is electrically connected through the medium of the nuts 6a and 7a the terminal of a conductor 9a. It is believed to be obvious that the nuts 6a and 7a are threaded upon the post 5a.

At a point substantially diametrically opposed `to the binding post 5a is a second post `25 extending through the head memberrla Yand Yheld thereto bythe nuts 26 mounted Von the post 25 and engaging opposite faces of the member 1a. The outer or upper end portion of the post 25 has engaged therewith a second nut 27 coacting with the adjacent nut 26 for effectively holding the terminal of the conductor 22a in electrical connection with the post 25.

The post 25 extends a considerable distance inwardly or downwardly with respect to the head member 1a and terminates in an enlargement or head 28. This portion of the post 25 is angular in cross section and is Jfreely and snugly engaged through the central portion of a contact plate 29 substantially crescent shape in plan. This plate 29 contacts with the outershell 30 ofthe lamp and is maintained in such contact through the instrumentality of a coil spring '31 encircling the post 25 between the applied plate 29 and the adjacent nut 26.

The head 'member 1a carries a plurality of arms 12a Yeach 'terminating in a cross bar 15a; for engagement with the shell or sleeve 30 of the lamp whereby the socket and lamp are eii'ectively maintained in desired assembled relation. i

From the foregoing Adescription it is thought to be obvious that an electric 'socket constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and 'it will also be obvious that my invention is susceptible of some change and modification without departing from `the princi-ples `'and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein lshown in carrying Vout my invention in practice vexcept `as hereinafter claimed.

T claim 1. An electric socket including `a Ihead, resilient arms secured at certainoftheir Iends to the head and extending -in convergent 'relation and in common direction from the head, and longitudinally curved bars secured between their ends to the'other or free ends of the arms, the bars extending -transversely of the arms and having concave sides `facing each other.

2. An electric socket including ahead insulatingV material, a `contact positioned at one side of the head, a binding post carried by the head and extending beyond said side 3 'thereof in spaced relation to the contact, a contact plate mounted upon `the binding post for movement thereon toward and away from `said side of the head, and a spring mounted on -the post between the head rand Contact plate and normally 'urging the latter away from the head. p

`3. An electric Vsocket including ahead :of insulating material, `a vcontact positioned at one side of the head, a ybinding post carried of l by the head and extending beyond said side thereof in spaced relation to the Contact, a contact plate mounted upon the binding post for movement thereon toward and away from said side of the head, a spring mounted on the post between the head and Contact plate and normally urging the latter aWay from the head, resilient arms secured at certain of their ends to the head and extending in oonvergent relation beyond said side oi the head, and longitudinally curved bars secured between their ends to the other or free ends of the arms, the bars extending transversely of the arms and having their ooncave faces facing each other.

In testimony whereof I hereunto aiiix my signature.

WILBER L. LONG. 

